Skip to main content
SpringerLink
Log in

Combined Cold Expansion and Friction Stir Processing of Fastener Holes in Aluminum Alloy Al-2014-T6

  • Technical Paper
  • Published:
Transactions of the Indian Institute of Metals Aims and scope Submit manuscript

Abstract

Cold expansion is used to induce compressive stress zone, by inserting a tapered mandrel/pin or ball into an undersized fastener hole in order to improve fatigue life. In this paper, combined cold expansion and friction stir processing of fastener holes in aluminium alloy Al-2014-T6 is presented wherein the cold expansion tool rotates and thus friction stirs the cylindrical surface of a fastener hole while expanding it. The residual stress, surface roughness and hardness of wall of fastener holes are measured and SEM images are captured. The combined cold expansion method is evaluated for three conditions at tool and fastener hole interface, namely wet (i.e., in presence of metal working fluid), solid lubricant (i.e., in presence of Al2O3 nanoparticles), and dry (i.e., without any external medium). The conventional cold expansion process is compared with combined cold expansion and friction stir processing. The results indicate efficacy of using nanoparticles as a medium in combined cold expansion and surface processing of Al-2014-T6 aluminium alloy to improve surface integrity and fatigue life.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9

Similar content being viewed by others

References

  1. Leon A, Int J Fatigue 20 (1998) 1.

    Article  Google Scholar 

  2. Liu J, Shao X J, Liu Y S, and Yue Z F, Mater Sci Eng 477 (2008) 271.

    Article  Google Scholar 

  3. Chakherlou T N, and Vogwell J, Fatigue Fract Eng Mater Struct 27 (2004) 343.

    Article  Google Scholar 

  4. Chakherlou T N, and Yaghoobi A, Fatigue Fract Eng Mater Struct 33 (2010) 740.

    Article  Google Scholar 

  5. Aghdama A B, Chakherlou T N, and Saeedi K, Mater Des 31 (2010) 500.

    Article  Google Scholar 

  6. Amrouche A, Su M, Aid A, and Mesmacque G, J Mater Proc Technol 197 (2008) 250.

    Article  Google Scholar 

  7. Su M, Amrouche A, Mesmacque G, and Benseddiq N, Comput Mater Sci. 41 (2008) 350.

    Article  Google Scholar 

  8. Hossein B, and Abasi A, Am J Mater Sci 1 (2011) 67.

  9. Houghton S J, and Campbell S K, Fatigue Fract Eng Mater Struct 35 (2011) 74.

    Article  Google Scholar 

  10. Maximov J T, Kuzmanov T V, Anchev A P, and Ichkova M D, J Mater Process Technol 171 (2006) 459.

    Article  Google Scholar 

  11. Jordan Maximov T, and Galya Duncheva V, Finite Elem Anal Des 44 (2008) 372.

    Article  Google Scholar 

  12. Kumar B M, Panaskar N J, Sharma A, Int J Adv Manuf Technol, 73 (2014) 1189.

    Article  Google Scholar 

  13. Panaskar N J, and Sharma A, Mater Manuf Processes, 29 (2014) 726.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Indian Institute of Technology Hyderabad, Yeddumailaram, Hyderabad, 502 205, India

    Nitin J. Panaskar & Abhay Sharma

Authors
  1. Nitin J. Panaskar
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Abhay Sharma
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Abhay Sharma.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Panaskar, N.J., Sharma, A. Combined Cold Expansion and Friction Stir Processing of Fastener Holes in Aluminum Alloy Al-2014-T6. Trans Indian Inst Met 70, 107–114 (2017). https://doi.org/10.1007/s12666-016-0865-0

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12666-016-0865-0

Keywords

Search

Navigation